Nature Books

Medicines may be administered to cattle in many ways. The channel and method of administration depend on whether a general or local effect is desired, the condition of the animal, and the nature of the medicine that is to be given. The easiest method, and therefore the most common, is to give ordinary remedies by the mouth with the food, with drink, or separately. There, are, however, some conditions... more...

Identification is Important Identifying waterfowl gives many hours of enjoyment to millions of people. This guide will help you recognize birds on the wing—it emphasizes their fall and winter plumage patterns as well as size, shape, and flight characteristics. It does not include local names. Recognizing the species of ducks and geese can be rewarding to birdwatchers and hunters—and the ducks.... more...

Chapter I. Its Antiquity, Duration and Significance in Geologic History. Palæontology deals with the History of Life. Its time is measured in geologic epochs and periods, in millions of years instead of centuries. Man, by this measure, is but a creature of yesterday—his "forty centuries of civilization" but a passing episode. It is by no means easy for us to adjust our perspective to the... more...

Marco Polo, had he confined himself to a sober narration of his travels, would have left to posterity a valuable record of the political institutions and national customs of the peoples of his day in the Far East. He was not satisfied with doing this, but added to his narrative a number of on-dit more or less marvellous in character, which he collected from credulous or inventive persons with whom he... more...

CHIRP THE FIRST. The winter of 1878 was certainly an unusually dreary one, and so thought a remarkably fine young Blackbird, as he perched one morning on the bare bough of a spreading lime-tree, whose last brown leaf had fallen to the ground some weeks before. With the exception of the Scotch firs and other fortunate evergreens, there was nothing to be seen on all sides but leafless branches standing... more...

The Swan. The Swan is a very beautiful bird. It is generally white, though a black swan has been discovered in Australia. It is not very often seen in this country. It was brought from Asia and Eastern Europe into England—from whence, most probably, a few specimens have been introduced into this country. The Swan is very graceful in the water, but on land it is an awkward waddler. The Coot is... more...

IN 1949, for the Museum of Natural History of the University of Kansas, Mr. John A. White collected two specimens of the species Microtus montanus in the Bitterroot Valley of Montana, that did not fit the description of any named subspecies. These were laid aside until we could examine the additional specimens from Montana in the Biological Surveys collection in the United States National Museum, some... more...

PREFACE. There is no lack of good manuals of botany in this country. There still seems place for an adequately illustrated book of convenient size for field use. The larger manuals, moreover, cover extensive regions and sometimes fail by reason of their universality to give a definite idea of plants as they grow within more limited areas. New England marks a meeting place of the Canadian and... more...

IMPORTANCE OF RODENT GROUPS. As the serious character of the depredations by harmful rodents is recognized, State, Federal, and private expenditures for their control increase year by year. These depredations include not only the attacks by introduced rats and mice on food materials stored in granaries, warehouses, commercial establishments, docks, and private houses, but also, particularly in the... more...

CHAPTER XXI. THE MOLUCCAS—TERNATE. ON the morning of the 8th of January, 1858, I arrived at Ternate, the fourth of a row of fine conical volcanic islands which shirt the west coast of the large and almost unknown island of Gilolo. The largest and most perfectly conical mountain is Tidore, which is over four thousand Feet high—Ternate being very nearly the same height, but with a more rounded and... more...